Four unifying principles form the foundation of modern biology<span>: cell theory, evolutionary theory, the gene theory and the </span>principle<span> of homeostasis. These </span>four principles<span> are the founding principles of each category of biology</span>
Answer: tobacco has been use by the native American Indian nations for many centuries as a medicine for spiritual and cultural importance. It is use as an offering to their creator,place or being. Tobacco contains a addictive stimulate known as nicotine. Nicotine is used in our present day pharmaceutical drugs. Study shows that nicotine
improve memory and concentration. Nicotine increases blood pressure and heart rate,, nicotine replacement therapy is use to help people to stop smoking, tobacco mixed with lime and chalk are use as tooth paste to whitening the teeth by Native American.
The four systems that describe the functions of the circulatory systems are:
- oxygen is delivered to cells throughout the body by this system
- This system removes carbon dioxide from organs & delivers it to the lungs.
- Carbon dioxide exits the body through this systems
- This system's organs pass oxygen into the bloodstream.
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What is the circulatory system?
The circulatory system can be referred to as a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of humans or other vertebrates.
The circulatory system includes the cardiovascular system, also known as the vascular system which consists of the heart and blood vessels.
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Answer:
protein, amino acid chain
<h2>Answer </h2>
The method is by adding various small DNA chains such as TTAGGG, that develop a hairpin turn.
<u>Explanation </u>
The method is by adding various small DNA chains such as TTAGGG, that develop a hairpin turn. Telomerase is an RNA dependent DNA polymerase means an enzyme that can make DNA using RNA as a template. The ends of linear chromosomes called telomeres that protect genes from getting deleted as cells continue to divide. The telomerase enzyme attaches to the end of chromosome complementary bases to RNA template are added on 3 ends of the DNA strand.
